Counterblock for printing-presses.



B. M. LOOKWOOD. I GOUNTBBBLOOK FOB PRINTING PRESSBS.

A PPLIOATION IILBD JULY 7 1914.

Patented Feb. 2,- 1 915,

@MQJW gm M ' INVENTOR ATTQRNEY UNITED sra'rns Parana canton EDWARD M. LOCKWOOD, F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR T0 0. R. CARVER COMPANY, 0F PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

fipplication filed July 7, 1914.

delphia, and State of Pennsylvania, have in-' vented an Improvement in Counterblocks corresponding parts.

for Printing-Presses, of which the following is a specification.

This invention relates to printing or embossing'presses and more particularly to an improved construction of counter-block therefor, and consistsof certain improvements which are fully set forth in the following specification and shown in the accompanying drawings which form a part thereof.

The object of the invention is to provide a counter-block having means for securing thereto a counter-block plate carrying a make-ready, the construction being such that a number of counter-block plates may be used with the same counter-block, and all of said plates being interchangeable and removably attached to the said counter-block.

It .has for a further object to provide a means for locating and locking a counterbl'ock plate to the counter-block so that the make-ready carried by thecounter-plate is accurately positioned in juxtaposed relation to the adjacent'guide. My invention also comprehends details of construction, which, together with the features above specified, will be better understood -;by reference to the drawings, in which 5- Figure 1 represents a plan of a counterblock embodying my invention; Fig. 2 represents a side elevation of the same and its the head of a press; Fig. 3 represents a section on line w-w of Fig. 2. Similar numerals of reference indicate 1 designates a counter-block for use in connection with printing presses, referably of the embossing type, said block eing provided with a stem or extension 2 of tapered form adapted to seat within an opening 3 formed in the head 4; In the present instance only the lower end portion of the head 4' is shown, but it will be understood that this is the general type of head used.

in printing presses and may be either fixed or reciprocable according to requirements.

Specification of Letters Patent.

may be turned to a the edge of the counter-block plate 12, thus COUNTERBLOGK FOR PRINTING-PRESSES.

Patented net. 2, 1915.

Serial N0. 849,395.

The extension member 2 as here shown is fixed within the head 4: by means of a set screw 5 as will be readily seen. In order to prevent turning movement of the block with respect to the head I have shown a dowel pin 6 adapted to seat within a suit able opening 7 in the head 4.

8 designates the counter-block gibs of which there are preferably two spaced a suitable distance apart and each provided with a beveled face 9, said gibs beihgfixed to the counter-block by screws 10 or like fastening means. I beveled faces 9 are inwardly inclined and conform to the'inclined faces 11 of the counter-block plate 12, forming retaining guides which hold the latter inoperative position upon the counter-block but allow sliding movement of the counter-plate with respect to the counter-block. 13 designates stop members secured by screws 14, or like means,

It will be noted that'th'e u,

to one side of the counter-block plate' 12 and each projecting at one edge so as to form stops which; abut the side face of the counter-block 1.

15 designates a thumb *screw having threaded engagement with the counter-block and positioned so that the wing of said nut position overlapping forming a lock tohold the plate in its operative position.- 16 designates the makeready or strip of soft material which is glued or cemented to the face of the counter-bloclr plate in opposed relation to the die 17 which is of course carried by the opposite head not shown.

In the'operation of the device it will be understood that the counter-block 1 while being removablv carried by the head 4 is normally fixed thereto and remains substantially. as a permanent part thereof so that if a changeis to be made in the die the counter-block plate may be readily removed by turning the wing nut 15 so that it no longer extends into the path of the plate and the latter may then be drawn out along the slides provided by the retaining guide gibs 8. As soon as one plate is removed a new counter-block plate with its makeready strip secured thereto is slid into place with the stop members 13 abutting the face of the counter-block, following which the wing nut is turned to lock it in place. In

this manner it will be apparent that'the departing from. the spirit or scopeof the counter-block plate may be readily and invention.

easily interchanged and one make-ready Having now described my invention,

substituted for another with but little loss what I claim as new and desire to protect by of time and the machine is ready to resume Letters Patent is 1 the pressing or printing operation in a In a device of the character stated, a

minimum of'time. counter-block adapted to be removably se- It will now be apparent that I have decured to the head of a press, a counter block vised a complete unitary structure wherein plate for said counter-block, a make-ready able counter-plates which are interchangesecured to sai the counter-block is provided with removfixed to said plate, undercut guide members d counter-block to form guides able one with the other so that each die may and supports for said plate, a plurality of have a mounted make-ready provided for stop members fixed to the front portion of the particular use of that die while the insaid plate and projecting to one side there- -;'terchange of one part for another may be of to contact with said counter-block and made with quickness and corresponding determine the operative position of said saving of time. It will also be apparent plate, and a locking member havingnthreadthat I have devised a novel and useful con ed engagement with said counter-block and struction which embodies the features of provided with a lateral extension adapted to advantapi'e enumerated as desirable, and be moved into the path of said plate to form iav while ,I e in the'present instance shown a lock and prevent displacement thereof. and described the preferred embodiment In testimony of which invention, 1 herethereof which has been found in practice to unto set my an. give satisfactory and reliable results, it is to EDWARD M. LOCKVVOOD..: be understood that I do not restrict myselfi Witnesses: to the details, as the same are susceptible of Homer. D. Rnnvn,

mpdilication in various particulars Without E. W. SMITH. 

